Creating combo charts
Drag and drop three combo or line and clustered column chars from the visualizations
pane to the canvas.
To show an open rate month over month by group, by quarters, by day of the weeks.
Then add fields from the fields pane,
Days of the weeks
click on view the themes then choose colorblind safe
Formating
MoM color- #5289bf
Data labels - #36006d
line chart Shapes
v
Groups
coloring based on email count for group chart
Click on data color and default color
Quarters
How to make combo charts in power bi
https://www.youtube.com/watch?v=lq9LiQC6dzo&feature=emb_logo